The third paper defines "addiction" as certain behaviors and shows that over-consumption of sugar induces those addictive behaviors. Do you have a problem with the defined behaviors?

If you will be deprived from water, you will easily show such "addictive behaviour".

Not sure about just looking, but there are sex addictions for sure.

How about holidays "addiction", or sleep "addiction"?

Cocaine addiction mechanism have completely different nature. Cocaine directly interact with pleasure part of brain crossing blood-brain barrier. Sugar, food, looking at girls and other pleasant for human things does not. If something activate pleasure part of brain, this does not mean that it is some narcotic.

obese people ate too many carbohydrates over years

Like all other people who, suddenly, do not become obese.

and have a reduced ability to process carbs.

To solve that problem you need to find out why they have a reduced ability to process carbs and fix that problem. Than, that ex-obese people will be able to eat everything without consequencesjust like others. But that way will lower the profit of big farma, food corporations and different "diet creators".

The third paper defines "addiction" as certain behaviors and shows that over-consumption of sugar induces those addictive behaviors. Do you have a problem with the defined behaviors?

If you will be deprived from water, you will easily show such "addictive behaviour".

Not sure about just looking, but there are sex addictions for sure.

How about holidays "addiction", or sleep "addiction"?

obese people ate too many carbohydrates over years

Like all other people who, suddenly, do not become obese.

and have a reduced ability to process carbs.

To solve that problem you need to find out why they have a reduced ability to process carbs and fix that problem. Than, that ex-obese people will be able to eat everything without consequencesjust like others. But that way will lower the profit of big farma, food corporations and different "diet creators".